The genetic basis of structural colour variation in mimetic Heliconius butterflies.
The genetic basis of structural colour variation in mimetic Heliconius butterflies.
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DOI：
10.1098/rstb.2020.0505
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发表时间：
2022-07-18
影响因子：
6.3
通讯作者：
Nadeau, Nicola J.
中科院分区：
文献类型：
--
作者：
Brien, Melanie N.;Enciso-Romero, Juan;Lloyd, Victoria J.;Curran, Emma V.;Parnell, Andrew J.;Morochz, Carlos;Salazar, Patricio A.;Rastas, Pasi;Zinn, Thomas;Nadeau, Nicola J.
由超微结构反射光产生的结构颜色在蝴蝶中已经进化了多次。与猪的颜色和图案不同，人们对这些颜色的遗传基础知之甚少。在许多蝴蝶中，翅鳞脊上的反射结构是彩虹色结构的原因，包括穆勒模仿Heliconius erato和Heliconius melpomene。在这里，我们量化方面的规模超微结构的变化和颜色的虹彩和非虹彩亚种这两个物种之间的杂交，并进行数量性状位点（QTL）定位。我们发现，彩虹色的结构颜色有一个复杂的遗传基础，在这两个物种，与杂交后代有很大的变化，在蓝色（色调和亮度）和规模的结构测量。我们在每个物种中检测到两个不同的基因组区域，解释了适度的这种变异，在H. erato而不是H.美波美我们还发现物种之间的差异，在结构和颜色之间的关系，总体上表明，这些物种遵循不同的进化轨迹，在他们的结构颜色的演变。然后，我们确定的QTL区间内的基因，亚种和/或翅膀区域之间的差异表达，揭示可能的候选人控制结构颜色形成的基因。本文是主题问题的一部分“适应和物种形成的遗传基础：从基因座到致病突变”。
Structural colours, produced by the reflection of light from ultrastructures, have evolved multiple times in butterflies. Unlike pigmentary colours and patterns, little is known about the genetic basis of these colours. Reflective structures on wing-scale ridges are responsible for iridescent structural colour in many butterflies, including the Müllerian mimics Heliconius erato and Heliconius melpomene. Here, we quantify aspects of scale ultrastructure variation and colour in crosses between iridescent and non-iridescent subspecies of both of these species and perform quantitative trait locus (QTL) mapping. We show that iridescent structural colour has a complex genetic basis in both species, with offspring from crosses having a wide variation in blue colour (both hue and brightness) and scale structure measurements. We detect two different genomic regions in each species that explain modest amounts of this variation, with a sex-linked QTL in H. erato but not H. melpomene. We also find differences between species in the relationships between structure and colour, overall suggesting that these species have followed different evolutionary trajectories in their evolution of structural colour. We then identify genes within the QTL intervals that are differentially expressed between subspecies and/or wing regions, revealing likely candidates for genes controlling structural colour formation. This article is part of the theme issue ‘Genetic basis of adaptation and speciation: from loci to causative mutations’.
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DOI：
10.1098/rsif.2017.0948
发表时间：
2018-04
期刊：
Journal of the Royal Society, Interface
影响因子：
--
作者：
Parnell AJ;Bradford JE;Curran EV;Washington AL;Adams G;Brien MN;Burg SL;Morochz C;Fairclough JPA;Vukusic P;Martin SJ;Doak S;Nadeau NJ
通讯作者：
Nadeau NJ
影响因子：
1.9
作者：
GHIRADELLA, H
通讯作者：
GHIRADELLA, H
影响因子：
3.3
作者：
Kemp, Darrell J.;Rutowski, Ronald L.
通讯作者：
Rutowski, Ronald L.
影响因子：
4
作者：
Roch, F;Alonso, CR;Akam, M
通讯作者：
Akam, M
影响因子：
3.3
作者：
MALLET, J;BARTON, NH
通讯作者：
BARTON, NH